File:ETH-BIB-Ophthalmometer-ETHZ PHYS 0676.tif
From Wikimedia Commons, the free media repository
Jump to navigation
Jump to search
Size of this JPG preview of this TIF file: 800 × 534 pixels. Other resolutions: 320 × 214 pixels | 640 × 427 pixels | 1,024 × 683 pixels | 1,280 × 854 pixels | 2,560 × 1,708 pixels | 8,368 × 5,584 pixels.
Original file (8,368 × 5,584 pixels, file size: 44.37 MB, MIME type: image/tiff, 2 pages)
File information
Structured data
Captions
Summary
Object
Ophthalmometer nach Hermann von Helmholtz | |||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Artist |
Moritz Meyerstein, Göttingen |
||||||||||||||||||||||||||
Title |
Ophthalmometer nach Hermann von Helmholtz |
||||||||||||||||||||||||||
Description |
Konstruktion zur Messung kleiner Abstände (0.01 bis 3 mm), zur Ausmessung des Augapfels, Instrument zur Messung der Oberflächenkrümmung der Hornhaut, nach Helmut von Helmholtz |
||||||||||||||||||||||||||
Date |
between 1860 and 1882 date QS:P571,+1850-00-00T00:00:00Z/7,P1319,+1860-00-00T00:00:00Z/9,P1326,+1882-00-00T00:00:00Z/9 |
||||||||||||||||||||||||||
Medium | Messing, Stahl, Glas | ||||||||||||||||||||||||||
Dimensions |
height: 28 cm (11 in); width: 23 cm (9 in); depth: 21.5 cm (8.4 in) dimensions QS:P2048,28U174728 dimensions QS:P2049,23U174728 dimensions QS:P5524,21.5U174728 / Gewicht: 5195 g |
||||||||||||||||||||||||||
Collection |
institution QS:P195,Q684773 |
||||||||||||||||||||||||||
Current location |
ETH-Bibliothek |
||||||||||||||||||||||||||
Accession number |
ETHZ_PHYS_0676 |
||||||||||||||||||||||||||
Object history | Departement Physik, ETH Zürich | ||||||||||||||||||||||||||
Inscriptions | M. Meyerstein in Göttingen (Gravur), Ophtalmometer, Zur Messung kleiner Abständeb (0.01 bis 3 mm), konstruktion von Helmholtz 1895 zur Ausmessung des Augapfels (Schild mit Erläuterungen (zu Ausstellungs- oder Lehrzwecken erstellt)) | ||||||||||||||||||||||||||
Notes | https://onlinelibrary.wiley.com/doi/pdf/10.1002/andp.18601871105 |
Photograph
DescriptionETH-BIB-Ophthalmometer-ETHZ PHYS 0676.tif | Digitale Fotografie, Bildnachweis: Sammlung wissenschaftlicher Instrumente und Lehrmittel, ETH-Bibliothek, ETH Zürich, Foto: Stephan Bösch | |||
Date | ||||
Source |
E-Pics Sammlung Wissenschaftlicher Instrumente und Lehrmittel http://doi.org/10.21264/ethz-a-000011709
|
|||
Author | ETH-Bibliothek, Foto: Stephan Bösch | |||
Permission (Reusing this file) |
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
|
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 15:22, 2 January 2022 | 8,368 × 5,584, 2 pages (44.37 MB) | ETH-Bibliothek (talk | contribs) | == {{int:filedesc}} == {{Art Photo |wikidata = Q1758711 |artist = Moritz Meyerstein, Göttingen |title = Ophthalmometer nach Hermann von Helmholtz |description = Konstruktion zur Messung kleiner Abstände (0.01 bis 3 mm), zur Ausmessung des Augapfels, Instrument zur Messung der Oberflächenkrümmung der Hornhaut, nach Helmut von Helmholtz |date = 1860-1882 |medium = Messing, Stahl, Glas |dimensions = {{Size|cm|heig... |
You cannot overwrite this file.
File usage on Commons
The following 2 pages use this file:
Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Camera manufacturer | LEICA CAMERA AG |
---|---|
Camera model | LEICA SL2 |
Exposure time | 1/125 sec (0.008) |
F-number | f/16 |
ISO speed rating | 100 |
Date and time of data generation | 10:10, 25 March 2021 |
Lens focal length | 50 mm |
Width | 8,368 px |
Height | 5,584 px |
Bits per component |
|
Compression scheme | LZW |
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Number of rows per strip | 128 |
Horizontal resolution | 240 dpi |
Vertical resolution | 240 dpi |
Data arrangement | chunky format |
Software used | GIMP 2.10.30 |
File change date and time | 20:02, 1 January 2022 |
Exposure Program | Manual |
Exif version | 2.31 |
Date and time of digitizing | 10:10, 25 March 2021 |
Meaning of each component |
|
APEX shutter speed | 6.9657842861166 |
APEX aperture | 8 |
APEX exposure bias | 0.3 |
Maximum land aperture | 2.9708536585366 APEX (f/2.8) |
Metering mode | Pattern |
Light source | Other light source |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Focal plane X resolution | 2,325.128440367 |
Focal plane Y resolution | 2,325.128440367 |
Focal plane resolution unit | 3 |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Custom image processing | Normal process |
White balance | Manual white balance |
Focal length in 35 mm film | 50 mm |
Scene capture type | Standard |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |